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H P. KRAFT'. DUSI CAP FOR HRE VALVES OR- THE LIKE. APPILICATION FILED DEL-17.1914.

.1 ,8 1 9,1 55. Patented m. 21, 1919.

INVENTOR By Attorneys,

ITIIDf-STATES PATENT onrron.

nun-RY 2. mm, or nirximireel), ersey To all whom concern:

-Be it"known that I, HENRY'P. KRAIT, a

, citizen 'of't he UnitedfStattes, residing in- Ridgewood, inTthe county of Bergen and State of NewJersey, haveinvent'ed certain new and useful Improvements in Dust-Caps of which the or the like, and aims to provide oertent-improvements therein.

th o'f,tire valves 'the valve comrn'only pr ,through'thernm'and it is usual tof e a 'dust'cap which screws 1 over the. proj'e and sometimes on account'ofthe difi'erence in the-length of the valve. Itis customary .to construct a cap-of a fixed or standard g end of the valve for the .ectingportion of the valve.

varies in individual cases on account of the difference in the; thickness of the Wheel felly,

length which-occasionally will he found;

too .short to adequate ly cover the valve.-'

Such-dust caps usually screw onto the'valve orhave"so1ne other means of connection ,.,.-with it, and on. account of the'difi'erence'of the diameters ofvalves, d iflerent sizes of capsmie usually employed; According to the-present inven'ti on I- provide a cap composedjof two or more sections which; have a; 'meansjofconnection with each 'other ,whelfebythe length may be varied, and also the diameterof the foot or the attaching, 35'

portionfof the "cap. Suchcaps usually screw along the entire projecting portion of the valve, so that the operation of applying and .removing the dust cap is a lengthy one. According to the present invention the connection between. the sections of the cap is preferably a quick connection such as a ShOI'lTSCIGW-thlfltd or the like, so that in I order toobtain access to the valve for in'- flating'or "otherurposes a. portion of the cap may be quic 1y removed WithOllt'dlS- turbi'ng the foot. The in.vention also.-in-

eludes certain other features of 1mprove-'. v ment which will be hereinafter pointed out.

Referring to 'the ,drawing s, which show.

several-embodiments of the mvention, Fi e tie a section of a wheel felly,

' -showmg'a valve in elevation and the im proved dust cap in dianietrical section.

,, cting itfroln dust, injury,

j clamp the valve in place:

- joint.

' pre Specification of Letters Patent. V Oct. 21, j AppHeatien filed'ibeeember 17, 13514.1 Serial m. a'm'vez tion. v Fig.6 is a 'plan of Fig. 4.

Fig. 7 is a. diametrical section of the dust 'cap in its shortened f0rm..

tlQ II." .,-.I

Fig. '9 is a diametrical sectiloln of a form I ',Fig.- 8 is a sectional'view of a -Inodifica-'v of dust cap having a was er swiveledthereto. s r v I Fig 10 is a similar view of a cap adapted for a smaller valve.

' Referring to the drawings, .let A indie cate a wheel felly of usualconstruction, and

B a"commo n -for1n' of tire valve. Thetire valve is usually clamped in place by a rim-- nut C, although-in certain cases this may be omitted and the dust cap D utilized to The dust cap D provided by the invention is, as shown, formed in a plurality of .sec-*v tions. The-foot section or that just contiguous to the telly is indicated by the letter.

This section] is usually formed with a screw-threaded interior designed 'to engage the threads of the valve, although it may engage other parts tohold it in place: It

is usually formed with a nurling or other roughened-- surface to form a finger or wrench hold in screwlng 1t on or unscrewing it.

In the construction shown the outer end of the 'cap is formed of a closed end section is employed, or several'of such sections. Each of the sections; is preferably adapted to form-a connection with each or the other Gr, and if the cap is required to be of considerable length an intermediate section 11- sections. In the'const ruction shown in Fi .llto 7 this form of connection is by a s ip As illustrated, one part is formed. with a reduced portion such as I, which is;

adapted to enter a recess such-.as J in :the

next contiguous part; In order to, secure a ti ht frictional fit, the reduced .ortion ls el-ably slotted,pas shown at viding it into a series of spring arm's. such construction the arts retain their p0:

y'sition frictiomn the construction.

ion

can be adopted.

shown in Fig. 8 the connection'is a screwt-hreaded one. Obviously other connections The sections are interchangeable, so that the end portion G may fit the foot portion 1*), or one or more intermediate lengths, such as H may be introduced between the two.

By the present invention if the projecting end of the valve is long, three or more sections may be used, while if the latter is short, the end and foot portions may be directly connected, thus shortening the cap.

In Fig. 9 I have illustrated a construction in which a washer O (which may carry a packing ring) is swiveled to the .foot section E.

As valves of difierent diameters are commonly employed, foot portions having different diameters may be interchangeably used. This is illustrated in Fig. 10, wherein the internal diameter of the screw-threaded portion of the foot E is less than in Fig. 9, being designed to engage a smaller valve.

By the present invention various lengths of valve may be accommodated, and the operation of manufacturing is much fiicilitated. Instead of keeping various le gths and diameters of dust caps in stock it 1s necessary only to keep difi'erent diame ers of foot sections. It is customary to form dust caps of long cups which is a diflicplt drawing operation. By the present {invention each part is short, and is easily dr wn. In the use of this cap the operatio' of mfiating or deflating is greatly fagilitated, since it. is necessary only to rerno e one or more of the outer sections o'f the ea in order to expose the end of the valve. In the preferable forms where the sections are quickly detachable, this occuples only a moments time. The foot of the cap which ordinarily requires a longer time to screw it in place, is permitted to remain in position.

This is particularly advantageous where the rim nut is omitted, and the dust cap is 1'6" lied upon to clamp the valve in place, since it is not necessary to disturb this connection in order to inflate or deflate the tire.

While I have described the invention with reference to a dust cap for tires, it may be applied to other analogous articles.

While I haveshown and described several I stood that I do not wish, to be limited thereto, since various changes may be made 7 forms of the invention, it will be under- I therein without departing from the spiritof the invention.

WVhat I claim is:

1'. In dust caps, the combination of a foot section, andend section, and an intermediate section, said intermediate section being adapted to engage the foot and end sections, and said end section being adapted 'section and a plurality of foot sections having-different internal diameters, said end.

section being adapted to be interchangeably connected: with said foot sections.

4. In dust caps, the combination of an end section, a plurality of foot sections having different internal diameters,and an intermediate section, saidintermediate section being adapted to engage each of said foot, sections, and also to en age said end section.

In witness whereo I have hereunto signed my name in the presence of two subscribing witnesses.

' HENRY P. KRAFT.

Witnesses:

E. V. MYERS, FRED WHITE. 

